字元串(String)去除空格 https://www.cnblogs.com/jun-qi/p/11057421.html ...
str = " hello python " // 去除左空格: str=str.replace( /^\s*/, ''); // 去除右空格: str=str.replace(/(\s*$)/g, ""); // 去除兩頭空格: str = str.replace(/^\s+|\s+$/g,""); // 去除所有空格: str = str.replace(/\s+/g,"");
https://www.cnblogs.com/jun-qi/p/11057421.html